U.S. Doesn't Know Whether Other Russian Officials are Involved in Making Decisions

By

Adam Entous

March 26, 2014 1:35 p.m. ET

WASHINGTON—Russian President Vladimir Putin is directly overseeing a military buildup near Ukraine and it is not clear to what extent his defense minister and others in the government are involved in the decision making, British Defense Minister Philip Hammond said Wednesday during a visit to the Pentagon.

Russia has continued to build up forces along the Ukrainian border, expanding military exercises there, according to U.S....